578669 divided by 70 
The aim is to understand the frequency of 70 in 578669.

Moving on to step 1:
When dividing 5 by 70, we get 0 with a remainder of 5.
Put 0 as the next digit of the answer. 
Result so far: 0.0
Subtract 0 from 5 to get 5.
Grab the next digit (7) from the dividend, add it to 5, then carry on: 57 / 70

Moving on to step 2:
70 goes into 57 0 times with a remainder of 57.
Record the quotient 0 as the next digit in the result. 
Result so far: 0.0
Subtract 0 from 57 to get 57.
Bring next digit (8) of the dividend behind the 57 and repeat the process: 578 / 70

Advancing to step 3:
When dividing 578 by 70, we get 8 with a remainder of 18.
The number 8 becomes the next digit in our result. 
Result so far: 8.0
The remainder is 18 after subtracting 560 from 578.
Include the next digit (6) from the dividend after 18, then repeat: 186 / 70

Step 4:
70 can be fit into 186 2 times, resulting in a remainder of 46.
Put 2 as the next digit of the answer. 
Result so far: 82.0
If we take 140 away from 186, we end up with 46.
Bring next digit (6) of the dividend behind the 46 and repeat the process: 466 / 70

Step 5:
466 divided by 70 is 6 with a remainder of 46.
Write down 6 as next digit of the result. 
Result so far: 826.0
Deduct 420 from 466 and we're left with 46.
Fetch the next digit (9) from the dividend, attach it to 46 and continue: 469 / 70

On to step 6:
When dividing 469 by 70, we get 6 with a remainder of 49.
The number 6 becomes the next digit in our result. 
Result so far: 8266.0
Subtract 420 from 469 to get 49.
Since there are no more digits in the dividend, we add a zero to the remainder making it 490, and continue the process.

Let's proceed to step 7:
70 can be fit into 490 7 times, resulting in a remainder of 0.
The number 7 becomes the next digit in our result. 
Result so far: 8266.7
Deduct 490 from 490 and we're left with 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Moving on to step 8:
70 can be fit into 0 0 times, resulting in a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 8266.7
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

Going ahead to step 9:
70 can be fit into 0 0 times, resulting in a remainder of 0.
Write down 0 as next digit of the result. 
Result so far: 8266.7
Subtract 0 from 0 to get 0.
Since there are no more digits in the dividend, we add a zero to the remainder making it 0, and continue the process.

The final outcome is 8266.7, with a leftover of 0.0.